Valve silencer



C. BERNE VALVE SILENCER Sept. 10, 1929.

Filed Oct. 13, 1927 Illil INVEN TOR. Celealzn Barne ATTORNEY PatentedSept. 10, 1929.

UNITED STATES PATENT OFFICE.

CELESTIN BERNIE, F BBIDGEPORT, CONNECTICUT, ASSIGNOR. TO RALPH VITELLOAND CELESTIN BERN E, OF BRIDGEPORT, CONNECTICUT, A GOPARTNEBSHIP.

VALVE SILENGER.

Application filed October 13, 1927. Serial No. 226,000.

This invention relates to a silencer for tappet valves, and has moreespecial referonce to a silencer for tappet valves of the type used inconnection with valve-in-thehead motors.

An object of the invention is to provide a valve silencer adapted to beassociated with the usual valve operating mechanism of an internalcombustion engine to take up loose play or wear of said mechanism.

A further object is to provide a valve silencer for tappet valves whichwill be of simple, inexpensive and practical construction, will becapable of application to the valve operating mechanism of a motor invery easy manner, and will be an improvement generally over all more orless similar devices heretofore known.

With the above objects in view, as well as j others which will appear asthe specification through the upper part of an internal combustionengine, disclosing the novel valve silencer in side elevation;

Fig. 2 is a perspective view of the silencer,

disclosing certain of the parts of an internal combustion engine withwhich the silencer is associated Fig. 3 is a perspective View of thesilencer removed from the engine and Fig. 4 is a plan view of thelocating plate of the silencer, detailing the manner of associating thespring of the silencer with said plate.

With respect to the drawing and the numerals of reference thereon, 10represents an internal combustion motor having a standard. 11 pivotallysupporting a rocker arm 12. A valve stem 13 projecting upwardly throughthe head of the motor has an ordinary valve (not shown), and is adaptedto be engaged by an end 14 of the rocker arm A spring 15 interposedbetween the upper edge of the valve cage 16 and a collar 17 upon thestem normally keeps the valve seated. A push rod 18, actuated by a camon the cam shaft (not shown), is adapted to en,. gage the opposite end19 of the rocker arm to raise said engaged end and thus depress thevalve stem 13 to open the valve in the ordinary course of the operationof the engine. An adjusting screw 20 in said end 19 of the o5 rocker armengages a "cone-nut 21 on the push rod 18. A cover 22 for the parts ofthe motor before described is of rectilinear shape, including verticalside and end walls fitting upon'the motor block as at 23 and aii 7ohorizontal wall 241 above the rocker arm. A bolt 25 extending upwardlyfrom and attached to the motor block, as at 26, passes through the wall24 of the cover, and a wing nut 27 upon the threaded upper portion or}the bolt is adapted to be turned down against the horizontal wall 2 1 ofthe cover plate to fix its relation to the motor block.

Numeral 28 represents, generally, the valve silencer of the invention.As disclosed, said so valve silencer consists of a suitably bentresilient wire 29 and a locating plate 30.

Of the wire 29, numeral 31 represents an ordinary coil, the wire of thecoil merging at one of its ends in an upwardly eXten :l-' ing length 32desirably terminating in a loop 38 secured in any convenient manner tothe lower face of the plate 30 as by lugs 34 struck from the plate andbent over spaced apart locations of the loop, and the wire of said coilmerging at its opposite end in a preferably approximately horizontallength 35, the lengths 32 and 35 normally being, as disclosed, at abouta 60, angle to each other and in approximately parallel vertical planes.See Figs. 2 and 3, and the dotted line position of the upper portion ofthe valve silencer in Fig. 1. The approximately horizontal length 35terminates in a desirably shorter upwardly extending vertical length 36,itself terminating in a desirably approximately horizontal slightlycurved length 37 extending preferably about at right-angles to thehorizontal length 35. The horizontal slightly curved length 37terminates in a desirably somewhat longer downwardly extending verticallength 38, itself terminating in a preferably horizontal length 39extendingin direction away from the coil 31 and desirably approximatelyparallel with the length 35. The length 39 terminates in a slightlycurved length 40 extending preferably approximately horizontally andbeing in vertical alignment with the length 37, and the length 40terminates in a length 41 extending preferably approximatelyhorizontally in direction back toward the vertical length 38 andparallel with and in spaced relation to the length 39.

As will be apparent from the drawing, the lengths 36 and 37 and theupper portion of the length 38 constitute a hook 42 about in horizontalalignment with the coil 31, and the lengths 39, 40 and 41 constitute asecond book 43 beneath the hook 42 in alignment with said hook 42 in avertical plane extending longitudinally of the rocker arm 12, but spacedat further distance from a vertical plane extending transversely of saidrocker arm at the coil 31 than is said hook 42.

The manner of applying the valve silencer to the motor and its valveoperating mechanism will be very clear from Figs. 1 and 2. WVhile thecover 22 is removed from the motor block, the silencer is placed uponthe rocker arm 12 in such manner that the hook 42 fits upon the portionof said rocker arm between its axis and the end 19, the coil 31 beingpositioned at one side of said rocker arm as disclosed, the length 37being made to rest upon the upper edge-of said arm, and the lengths 36and 38 being positioned at opposite sides of said rocker arm. And thehook 43 is placed upon the push rod 18 so that the lengths 39, 40 and 41extend about a considerable part of the perimeter of' said push rod inclose proximity thereto or contiguous therewith. At this time the length32 will preferably have about the position as designated in dotted linesin Fig. 1, to situate the plate 30' above the normal location of thecover 22. WVhen then the cover 22 is placed upon the motor block andfastened down in the manner as described, the plate 30, together withthe length 32, will be pushed downwardly, and said plate 30 will fitagainst the under face of the wall 24 of the cover plate in the manneras indicated in full lines in said Fig. 1. Clearly, the valve silencerwill thus be stably situated in the motor, by reason of the fitting ofthe hook 43 over the push rod 18, the fitting of the hook 42 over therocker arm 12, and the fitting of the plate 30 against the under face ofthe horizontal wall 24 of the cover 22. The coil 31 and the lengths 32and 35 extending from said coil will, obviously, be

under spring tension resiliently pushing the end 19 of the rocker arm 12down against the push rod 18.

It will be seen that the hooks 42 and 43 can be fitted upon the rockerarm 12 and the push rod 18, respectively, without difficulty, all thatis necessary being to lower the valve silencer from position above andin vertical alignment with the rocker arm and push rod to cause the hook43 to move down past the end 19 of the rocker arm in spaced rela-.

tion to said end 19; to then move said silencer toward the axis of therocker arm to position said hook 43 about the push rod 18 and the hook42 above its intended position upon the rocker arm; and to then move thesilencer further downwardly to cause the hook 43 to reach a loweredposition along the length of the push rod and the hook 42 to rest uponthe rocker arm.

Having thus fully described the inven-. tion, what I claim as new anddesire to secure by Letters Patent is:

1. A silencer for valve operating mechanism including a rocker arm and apush rod, comprisin a member adapted to be,

located, a hook member connected with said located member and adapted toresiliently fit oversaid rocker arm to urge said arm toward the pushrod, and a second hook member connected with said hook member. firstmentioned adapted to fit said push rod.

2. A silencer for valve operating mechanism including a rocker arm and apush rod, comprising a resilient wire including a member adapted to belocated, a hook member adapted to fit upon the rocker arm to resilientlyurge said arm toward the push,

rod, a coil connecting said member to be located and said hook member,and a second hook member adapted to fit upon said 1 push rod. 7 I

3. A silencer for valve operating mechanism including a rocker, arm anda push rod, there being a housing for said rocker arm and push rodcomprising a member:

adapted to be located against said housing, a hook member connected withsaid located member and adapted to fit upon the rocker arm toresiliently urge said arm against the push rod, and a second hook member'con-= nected with the hook member first mentioned adapted to fit uponsaid push rod.

4. A silencer for valve operating mechanism including a rocker arm and apush rod, there being a housing for said rocker arm and push rod,comprising a resilient Wire and a plate, said plate being adapted tobear against said housing and said Wire including a hook member adaptedto resiliently engage the rocker arm to urge said arm against the pushrod, and a second member fitted about said push rod.

Signed at Bridgeport, in the county of Fairfield, and State ofConnecticut, this 11th 15 day of October, A. D., 1927.

CELESTIN BERNE.

